1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
import React from 'react';
import { Chip } from '@material-ui/core';
import { common } from '@material-ui/core/colors';
import {
darken,
getContrastRatio,
} from '@material-ui/core/styles/colorManipulator';
import { Color } from '../gqlTypes';
import { LabelFragment } from '../graphql/fragments.generated';
const _rgb = (color: Color) =>
'rgb(' + color.R + ',' + color.G + ',' + color.B + ')';
// Minimum contrast between the background and the text color
const contrastThreshold = 2.5;
// Guess the text color based on the background color
const getTextColor = (background: string) =>
getContrastRatio(background, common.white) >= contrastThreshold
? common.white // White on dark backgrounds
: common.black; // And black on light ones
// Create a style object from the label RGB colors
const createStyle = (color: Color, maxWidth?: string) => ({
backgroundColor: _rgb(color),
color: getTextColor(_rgb(color)),
borderBottomColor: darken(_rgb(color), 0.2),
maxWidth: maxWidth,
});
type Props = {
label: LabelFragment;
maxWidth?: string;
className?: string;
};
function Label({ label, maxWidth, className }: Props) {
return (
<Chip
size={'small'}
label={label.name}
className={className}
style={createStyle(label.color, maxWidth)}
/>
);
}
export default Label;
|
